Questions tagged [raid]

RAID stands for redundant array of independent disks, and allows for disks to be linked in various ways. Common RAID setups in Ubuntu are a hardware RAID, FakeRAID and software RAID.

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How to configure existing raid after upgrading to 14.04 from 11

I have a pci raid controller, with two 250G drives. Configured this to work on ubuntu 11 a few years back. Have since forgotten much about the details of this configuration (i.e. software, hardware, ...
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How to split RAID 1 disk created under Windows Server

I got a RAID 1 created under Windows Server 2012, as you can see : $ fdisk -l Disk /dev/sda: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors [...]Disklabel type: gpt[...] Device Start ...
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Can I get SSD rw performance while keeing data security if I combine SSD & HDD in RAID1

I have 2 storage devices; classical slow HDD( 750GB, /dev/sda ) and faster SSD( 128GB, /dev/sdb ). Currently I have installed Ubuntu & Mint on same btrfs partition on SSD ( /dev/sdb5 ). My btrfs ...
nmiculinic's user avatar
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I think I messed up GRUB (RAID installation)

Today I was doing a apt-get dist-upgrade, and a popup showed up, "Do you want to follow without installing grub?" or something like that, and I wrongly pressed YES, So, I have done a apt-get install ...
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Can I use RAID0 on Ubuntu Server if my motherboard doesn't support it?

I have a fairly cheap home server build and I want to setup RAID0, but my motherboard doesn't support it. Can I set it up using only software in Ubuntu? I have two empty 1TB Hard Drives. I have ...
A.J. Ruckman's user avatar
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Building a light weight home server/NAS. Question on RAID and filesystems

I'm planning a build that will be using Ubuntu Server 14.04. I have been trying to learn as much as possible and practice in virtualbox before actually installing any hardware. I am really enjoying ...
Crawfish's user avatar
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How to Install Ubuntu Desktop on RAID 1

I am having to rebuild my Ubuntu MYTHTV system (RAID 1) on new hardware due to power supply failure taking out major components (originally built on Feisty). I understood that RAID support was being ...
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Am I supposed to RAID0 the ESP partition? (mdad software RAID)

I'm well-versed in manually-partitioning for RAID0 or RAID1, but only with BIOS, and I would just give /sda an extra 1MB partition for GRUB. With UEFI installed, however, I am not sure what to do ...
jimmyco2008's user avatar
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Best RAID solution with a hardware RAID card?

I have a repurposed server. Before the repurpose it was an ESXi host so it had 6 2TB hard drives and an Adaptec 6805 SAS RAID card (and 2 6-core processors and 128GB ECC RAM which is another problem) ...
Maxthon Chan's user avatar
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Ubuntu Server 14.04 LTS Server not seeing a RAID1 setup by AMD-RAID

I am attempting to install Ubuntu Server on a RAID 1 array I setup through my AMD-RAID. This is the legacy RAID that comes with my MSI motherboard which is configured in the BIOS. I have setup the ...
Michael Quinn's user avatar
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What provides the mdadm-raid boot facility?

Three of my initscripts depend on boot facility mdadm-raid. In particular, user@host:/etc/init.d$ grep mdadm-raid * cryptdisks:# Should-Start: udev mdadm-raid lvm2 cryptdisks:# Should-Stop: ...
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Failed Raid 10 Disk - Cannot mount raid to recover

New to Linux and Ubuntu. I am running Ubuntu version 14 with 4 x 2TB drives in a raid 10 array. 2 of the drives have failed and I cannot get the array to mount in order to fail the drives and add new ...
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Ubuntu server 14.04 LTS black screen after grub

Motherboard: Asus H170-PRO CPU: Intel Core i5-6500 HDD: 1TB x2 From the BIOS I made the following changes: AdvancedMode -> Boot -> Secure Boot -> Os Type = Other OS (instead of Windows) Ez Tuning ...
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How do I convert from RAID1 to JBOD with btrfs?

I have the following RAID1 btrfs set: Label: none uuid: 87595481-7b5c-464e-b10d-d9b2b0852e11 Total devices 4 FS bytes used 4.77TiB devid 1 size 2.73TiB used 2.63TiB path /dev/sdb ...
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Installing Ubuntu on RAID 1, but not using all disks capacity? And what is HotSpare?

I'm totally new to all this hard disks matter and even newer to topic with RAID. I hope somebody can help me! I have installed Ubuntu 14.04 LTS (BioLinux) on Dell Precision T7500, with Dell PERC 6/i ...
Wilhelm Eng's user avatar
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Raic controller with ext sata cage

I was wondering how difficult it is to create a Raid 5 system on an Ubuntu 14.04 desktop pc already running. I plan to use this Raid card with this Sata Cage and add 4 HDD for backup and storage. I ...
simple mind's user avatar
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Ubuntu 15.10 can't see RAID 0 partition

I have 2 drives I've set up in RAID 0 (/dev/sda and /dev/sdb in Ubuntu). When I was running 15.04, I installed Ubuntu and a device appeared in /dev/mapper, which was the raid drive. After installing ...
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Massive read Problem with LSI SAS 9211-8i Host Bus Adapter under 14.04.3 LTS

I have a new installed 14.04.3 system with massive read problems from a raid 10 over a Avago LSI SAS 9211-8i Host Bus Adapter. I tried to install the latest driver downloaded "Linux Driver-...
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How to dual boot Windows 10 on RAID?

I've been trying to install linux on my system for a while now, and I'm at a loss for what to do. Trying to dual boot windows 10. Have a raid controller with mirrored hard drives. When currently ...
Scott Hoeppner's user avatar
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New 14.04 i386 desktop with 3ware 9500s and 4TB RAID, can't partition

My install was a bit troublesome but I have most things sorted out. The main reason I moved this system from XP to Linux was to get support for my upgraded 4TB raid array (old was 2tb). Both GParted ...
avgJoeUser's user avatar
2 votes
1 answer
3k views

How can I add drives to increase the capacity of a software raid 5 without losing data?

So I built a server for all my media streaming and storage needs. It's got three 3TB WD Reds in it configured in a RAID 5. I'm running Ubuntu 14.04.4 LTS. I had a friend set up the raid for me (I'm ...
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Read/Write issues, SATA PCI-E Addon [closed]

I'm rather new to Ubuntu/Linux, and it's been an education experience so far. However I've been struggling with an issue I've been unable to overcome. I'm getting an issue that causes freezing/...
LightWrath's user avatar
3 votes
1 answer
9k views

Restore RAID Drive on New OS

I had a problem with my Debian operating system on my SSD and have removed it (Debian) to install Ubuntu server. Originally, on my Debian operating system, I had installed mdadm and had a spanned ...
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Let LVM+LUKS volume grow over new drive or RAID?

I would like to extend the storage capacity on my Ubuntu server by adding more drives. I'm currently using LVM+LUKS on my server and I'm having some difficulty understanding how I may add new drives ...
Daniel Holm's user avatar
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2 answers
553 views

Troubles with creating RAID1 array on VM Ubuntu 15.04

I'm trying to create RAID 1 - array on VM Ubuntu 15.04 with two disks: sda and sdb. First disk already had partition table, so i created sections for the second disk using fdisk /dev/sdb: Then i ...
JohnS's user avatar
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9 votes
1 answer
642 views

Can I manage ZFS with Landscape and MAAS?

I have 5 different servers. I am very interested in installing ZFS across all of them. I also am interested in using JuJu, MAAS, and Landscape to automate the installation of ZFS, and the management ...
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4 votes
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remove mdadm raid1 without loosing data

I have 2 hdd's in raid1 using mdadm. Now i want to completely disable raid but i want to keep data on disk 1, and use disk 2 separately Is there a way to do this. Ill be honest, i know what raid is,...
pedja's user avatar
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How do I convert a RAID 4 array to RAID 0?

I had a three-disk RAID 0 array and ran the following to add a fourth disk: mdadm --manage /dev/md127 --add /dev/xvdi Each disk is a 1TB EC2 volume. The array took about 40 hours to reshape. About 1 ...
Matthew's user avatar
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2 answers
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How do you get a raid with 4 terabytes to give you the full disk amount in ubuntu server

I am running Ubuntu server 14. I have two 2 Terabyte Seagate drives raided to make a 4 terabytes. However when I mount the logical drive and run sudo lshw -c disk it shows as having 3999 GB of room. ...
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Installing alongside windows on raid 0

I currently have Windows 10 on 2x150gb raid 0 configuration (plus 2x1,5tb hdds with data, not raid) and want to install the latest ubuntu from dvd. If I choose the first option (to install alongside ...
Adagio's user avatar
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Fresh install of Ubuntu Server 14.04 not loading on Asus X99-E WS SOFTWARE RAID 1

I have TWO 1TB drives configured as SOFTWARE RAID 1 using the Asus X99-E WS motherboard. Both Drives are connected to the Asmedia SATA controller instead of the Intel SATA controller. I intend to use ...
Robbo's user avatar
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3 votes
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23k views

Bootable flag doesn't change to "on"

Installing Server 14.04 and configuring software RAID-1. I already made my swap partition on my first HDD, and when i configure the remaining FREE SPACE, the option for "Bootable flag:" is present but ...
Willman's user avatar
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2 answers
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Do I have to name partitions?

When installing Ubuntu Server 14.04, am I required to name all my partitions or can I leave the "name:" field blank without running into any problems/confusion now/later? I'm pretty new to the Ubuntu ...
Willman's user avatar
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Hardware (/fakeraid?) RAID 1 fails to show correct size using Asus X99-PRO

I have a Ubuntu-only system with 3 disks, 1 SSD drive and 2 identical mechanical drives. The first one has the core Ubuntu install while the latter 2 I want to set-up with RAID 1. Unfortunately I get ...
Max Gordon's user avatar
2 votes
1 answer
3k views

mdadm - Obsolete Array and current Array have same UUID. Current array won't assemble on boot

It's rare I ask questions, but Google has turned up a blank on this one, so here I am. I have a problem with my mdadm software Raid running on Ubuntu 14.04 Server edition. Specifically, I seem to ...
Torz77's user avatar
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2 answers
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Ubuntu Server Installation is Getting Stuck

I have been trying to install Ubuntu server on my IBM x3550 server to replace windows server; and the installation was doing just fine until it reached "Running live-installer-console-setup" at which ...
Aidan Crowther's user avatar
1 vote
0 answers
525 views

Rebuilding RAID 10 after crash

I am running a RAID 10 The structure 1x USB drive contains the systems and is the bootup disk. 4x 2T drives contain the RAD10 Array. What happened: • 3x 2T disks and 1 x 1.5T disk • Recently ...
Steve Mileman's user avatar
1 vote
1 answer
3k views

Fixing a broken RAID5 using mdmadm on Ubuntu 12.04 [QNAP device]

One of our QNAP NAS had gone down while alerting on disk thus they were all working/accessible on the array. And I'm trying to recover the DATA as the QNAP NAS neither boots nor responds with/without ...
AzkerM's user avatar
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Ubuntu MaaS Raid Preseed

Straight to the problem. I need a raid configured during the maas node commissioning via preseed file and I'm unable to find any meaningful documentation on how to do it. For example I need a preseed ...
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Use Marvell 88SE9172 sata controller for HW RAID 1

I setup a hardware RAID 1 with a Marvell 88SE9172 sata controller on a GA-Z97X-Gaming 7 motherboard. In my BIOS all settings seem fine and the RAID 1 was setup using the post boot setup. ...
Flatron's user avatar
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1 vote
1 answer
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Automatic mounting RAID array which is mounted manually

For our server setup, we have a RAID array which is being setup once and we have actually never rebooted the server. Right now the array is working fine, but I would like to add its entry to fstab so ...
We are Borg's user avatar
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Repair/Reset Hard Disk - don't mind losing data

I have an Alienware M14x R2 with a Seagate Momentus hybrid HDD/SSD. I clean installed Windows 10 today and I booted Gparted from a USB to edit my partitions. I accidentally ended up moving the OS ...
Papa Tango's user avatar
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2 answers
1k views

Cannot Install on a Thinkserver TS-140

Has anyone had a successful install of Ubuntu on a TS-140 RAID? I got it to install on my system AFTER I deleted the RAID partition into 2 separate drives. Called Lenovo/IBM tech support and they ...
D. Crook's user avatar
1 vote
0 answers
33 views

Error when installing Ubuntu for the first time

I'm trying to install Ubuntu for the 1st time. First time installing any Linux program. Have a brand new just ought of the box Thinkserver TS-140 with 2 - 1 TB drives configured as RAID 1. I get to ...
D. Crook's user avatar
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2k views

Replace failed disk in RAID 1

two days ago one of my two drives in my software RAID 1 (that was setup using gnome-disks) configuration failed. I could not access the files in the meantime. After short research it seems that I have ...
Flatron's user avatar
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Install Ubuntu to RAID0 created from "Live" desktop

I am booting 14.04 Desktop 64-bit to the "Try" desktop (Live). In the "Live" boot, I use dmraid to construct a softraid from the two 750GB hard drives on my machine, and then select that when I ...
b0bh00d's user avatar
1 vote
2 answers
630 views

Install RocketRaid 644L Raid Controller driver on Ubuntu

I bought a RocketRaid 644L and get stuck at driver installation. uname -a Linux hb38-backup 3.2.0-41.generic #66-Ubuntu x86_64 GNU/Linux lsb_release Description: Ubuntu 12.04.2 lspci RAID bus ...
Albert Chen's user avatar
1 vote
1 answer
175 views

Use RAID0 Array

I'm really new to doing stuff with RAID. I did a fresh install of Ubuntu Server 14.03 and made a RAID0 Array of 3 HDDs. I also set up an LVM on another HDD that's not part of the RAID. The way I set ...
o.o's user avatar
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1 vote
2 answers
2k views

How can I install Ubuntu onto a software RAID 10 array?

I'm planning to set up a low-traffic server using RAID 10 with four disks. I'd like to have Ubuntu 14.04 installed onto that RAID array. I've seen plenty of guides explaining how to set up RAID 10 ...
aswine's user avatar
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1 answer
1k views

After `apt-get upgrade` mdadm won't auto-assemble RAID at startup

After a simple apt-get upgrade, mdadm won't assemble my intel raid anymore automatically. This leads to fstab entries not being mounted and so the startup fails. I'm dropped into a recovery shell ...
Neycroir's user avatar

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